Java KeyListener 🚀

Java KeyListener keylistener key listener interface GUI swing tutorial for beginners

#Java #KeyListener #keylistener #key #listener #interface #GUI #swing #tutorial #beginners

public class Main{

public static void main(String[] args) {

new MyFrame();
}
}

public class MyFrame extends JFrame implements KeyListener{


JLabel label;
ImageIcon icon;

MyFrame(){


label = new JLabel();
}

@Override
public void keyTyped(KeyEvent e) {
//keyTyped = Invoked when a key is typed. Uses KeyChar, char output
break;
break;
break;
break;
}

}

@Override
public void keyPressed(KeyEvent e) {
//keyPressed = Invoked when a physical key is pressed down. Uses KeyCode, int output
break;
break;
break;
break;
}
}

@Override
public void keyReleased(KeyEvent e) {
//keyReleased = called whenever a button is released
}
}

[BroCodez]

public class Main{

public static void main(String[] args) {

new MyFrame();
}
}
import java.awt.Color;
import java.awt.event.*;
import javax.swing.*;

public class MyFrame extends JFrame implements KeyListener{


JLabel label;
ImageIcon icon;

MyFrame(){

this.setSize(500, 500);
this.setLayout(null);
this.addKeyListener(this);

icon = new ImageIcon("rocket.png");

label = new JLabel();
label.setBounds(0, 0, 100, 100);
label.setIcon(icon);

//label.setOpaque(true);

this.add(label);
this.setVisible(true);
}

@Override
public void keyTyped(KeyEvent e) {
//keyTyped = Invoked when a key is typed. Uses KeyChar, char output
switch(e.getKeyChar()) {
case 'a': label.setLocation(label.getX()-10, label.getY());
break;
case 'w': label.setLocation(label.getX(), label.getY()-10);
break;
case 's': label.setLocation(label.getX(), label.getY()+10);
break;
case 'd': label.setLocation(label.getX()+10, label.getY());
break;
}

}

@Override
public void keyPressed(KeyEvent e) {
//keyPressed = Invoked when a physical key is pressed down. Uses KeyCode, int output
switch(e.getKeyCode()) {
case 37: label.setLocation(label.getX()-10, label.getY());
break;
case 38: label.setLocation(label.getX(), label.getY()-10);
break;
case 39: label.setLocation(label.getX()+10, label.getY());
break;
case 40: label.setLocation(label.getX(), label.getY()+10);
break;
}
}

@Override
public void keyReleased(KeyEvent e) {
//keyReleased = called whenever a button is released
System.out.println("You released key char: " + e.getKeyChar());
System.out.println("You released key code: " + e.getKeyCode());
}
}

[ebrahimmahasin]

Dude!!!! That was the most straightforward and clean java tutorial I have seen yet. I'm gonna browse through your stuff now.

[danielm.]

love the way you teach us! thanks, God bless you!

[bgpplayz]

this is the first KeyListener tutorial that has actually worked for me!!!

[jassemtoumi]

The clearest and easiest way to learn Java on Youtube. Thanks so much Bro

[battiest]

Not gonna lie, u taught this better than my prof and helped me pass my exam!!

[pavelkvasnicka]

This is the best Java tutorial for beginners, so you can learn Java and English in one hit. Please keep going! I vote for Java advance tutorial. Thanks a lot Bro

[mhn]

Thanks for the tutorial, I could not understand any of the documents but your videos are really clear and understandable

[Liv.Junior]

exelente aula, eu nao entendo ingles mas entendi as referencias, muito obrigado.

[lightningxr]

if you ever feel useless just remember that there are people who disliked this masterpiece

[gloriousdude]

Thank u a lot bro! Keep it up! U r helping us newbies a lot. Your explanation is clear, good and simple.

[meshkaygaming]

Bro, You actually help me a lot in my Java journey

[Chuboi]

thanks for teaching me this :D helps out a lot. appreciate the work you do!

[henriquefelinimena]

Thank you for the content, really appreciate it.

[VDJWES_officialchannel]

I had a question, why is the label moving upwards when you place -1 on y-axis(label.getY()-1) in key I thought it should move downwards since the Vertical axis in Y shows negatives at the bottom or is usually on the bottom.... -1, -2, -3, -4, -5 (The arrow points downwards in Mathematical point of

[SchmiddiMusic-qucp]

2 hours of google grinding ... I could have just watched your video. Great work bro!

[gilantonyborba]

Thanks bro! You really help me so much! U are a amazing person and teacher!

[ghoshenterprise]

Thank you sir...for teaching us keylistener

[amedeekreuzer]

All weorked very well, except I had to adjust the size of the the rocket. I used an Image of the x-wing and sized it down within photoshop

[javacrow_]

Hey man! You make really good tutorials!! Recently I've been trying this out and it works, but one thing I can't seem to wrap my head around is the delay of the character. For a half a second it seems like the character has a delay for moving when you hold the key, and I am curious how I would fix this, any help would be appreciated